@pytest.mark.parametrize(
    'a,b,re',
    [
        # [99, 99,1],
        # [98, 98,1],
        [10, 0, "ZeroDivisionError"],
        ['abv', 99, "TypeError"]
    ]
)
def test_div(self, a, b, re):
    with pytest.raises(eval(re)) as e:
        print(e)
        resu = self.num.div(a, b)

        assert resu == re
        print(f"{a}/{b}={resu}")